The correct answer is option 'D' which includes all the given options: 1, 2, 3, and 4. The metropolis of the Indus Valley Civilization (IVC) were Ganweriwala, Rakhigarhi, Dholavira, and Harappa.

- Ganweriwala:
Ganweriwala is an archaeological site located in present-day Pakistan, in the Cholistan Desert of Punjab. It was one of the largest and most important cities of the Indus Valley Civilization. Excavations at the site have revealed a well-planned city with a fortified citadel, residential areas, and a sophisticated drainage system.

- Rakhigarhi:
Rakhigarhi is another significant site of the Indus Valley Civilization, located in present-day Haryana, India. It is the largest known site of the civilization, covering an area of about 350 hectares. The excavation at Rakhigarhi has uncovered a well-organized urban center with a grid-like pattern of streets, a large residential area, a granary, and evidence of craft activities.

- Dholavira:
Dholavira is an archaeological site located in present-day Gujarat, India. It is one of the most prominent and well-preserved sites of the Indus Valley Civilization. The city at Dholavira is divided into three parts - the Citadel, the Middle Town, and the Lower Town. It has a complex water management system, including reservoirs, channels, and wells. The site also has impressive architecture, including massive stone walls and unique water conservation structures.

- Harappa:
Harappa is one of the earliest and most well-known sites of the Indus Valley Civilization. It is located in present-day Punjab, Pakistan. The city at Harappa was a thriving urban center with well-planned streets, brick houses, and a sophisticated drainage system. Excavations at Harappa have revealed a wealth of artifacts, including pottery, seals, and figurines, providing valuable insights into the civilization's culture and trade.

In conclusion, all the given options - Ganweriwala, Rakhigarhi, Dholavira, and Harappa - were important metropolises of the Indus Valley Civilization.